249615513

素因数分解:

$3^4\times 7^1\times {\mathrm{440239}}^1$

素因数の和:440258

約数の個数: 20

約数和(自身を含む): 426152320

約数和(自身を除く): 176536807

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 440239, 1320717, 3081673, 3962151, 9245019, 11886453, 27735057, 35659359, 83205171, 249615513]

約数ペア:

[(1, 249615513), (3, 83205171), (7, 35659359), (9, 27735057), (21, 11886453), (27, 9245019), (63, 3962151), (81, 3081673), (189, 1320717), (567, 440239)]